Class D Amp with LM566, LM393 and 2XIRF530

[ravslanka]

Hi Abetir,

please mail me sprint layout file

ravslanka@gmail.com

thanks

ravs.....

 

[xaidi]

Hi Guys..! I need your help..!
I designed a circuit (Mixer device) that mix my microphone and my headphones volume that are connected to my computer via this mixer.
I used a diode (general purpose 1N4007) for preventing the audio from returning from headphones to computer's microphone port. That can cause noise and may enter the headphones audio to Microphone port.
Please tell me will this diode does the job? Or any other suggestion?
I hope this won't effect the wave spectrum of microphone , will it?
Your suggestion will be appreciated. Thank you DIY Audio Members
Here is the Circuit i designed. Its very simple ..!

 

[thimios]

Hi Mile ,can you help me finding a working(tested) pcb and schematic for this Class D amplifier?

 

[44250]

Hi Mile ,can you help me finding a working(tested) pcb and schematic for this Class D amplifier?

this should help. i did my APEX D200.1 (not 1a) files,but 1a files should work as well.

https://www.youtube.com/watch?v=mzD6gF11zV8

https://www.youtube.com/watch?v=_3bwwVTK0So

https://www.youtube.com/watch?v=v9wqH0emxnw

 

[thimios]

this should help. i did my APEX D200.1 (not 1a) files,but 1a files should work as well.

https://www.youtube.com/watch?v=mzD6gF11zV8

https://www.youtube.com/watch?v=_3bwwVTK0So

https://www.youtube.com/watch?v=v9wqH0emxnw

Thanks my friend!

 

[sima8520]

Hello Mr. Apex. I really liked your topic. I want to repeat D200 amplifier. But I can not find the scheme for him. Please share scheme. ilya_simonuk@mail.ru

 

[Chingy]

this should help. i did my APEX D200.1 (not 1a) files,but 1a files should work as well.

https://www.youtube.com/watch?v=mzD6gF11zV8

https://www.youtube.com/watch?v=_3bwwVTK0So

https://www.youtube.com/watch?v=v9wqH0emxnw

I used your files. Thanks borads collected today.
I have all the resistors in .25 watt will it work or must i use .5 watt

 

[Chingy]

I used your files. Thanks borads collected today.
I have all the resistors in .25 watt will it work or must i use .5 watt

first pics

 

[apexaudio]

first pics

Nice pcbs
Regards

 

[Chingy]

Nice pcbs
Regards

thanks to you and also to 44250 for the files,

 

[Chingy]

update on build

 

[fireworks]

What type of class D is this amplifier ? Like triangle, self-oscillating, UCD, etc. ?

 

[ionutzxpo]

its self oscilating based on IRAUDAMP1 sigma delta modulation scheme

 

[44250]

thanks to you and also to 44250 for the files,

have a good time listening this amplifier!

 

[44250]

...also,use a heatsink on BD transistor,it will get heated.

 

[fireworks]

its self oscilating based on IRAUDAMP1 sigma delta modulation scheme

Thanks.

 

[moko3arh]

I first assemble the power Class D but there are obstacles hoarseness can you help me, sorry I use googel translate, Greetings

 

[kinter]

hi to all,
Thank Apex and Thienchay for design and layout. I redraw the PCB for irf640n and I added a load resistor to 1.5k output.

 

[kinter]

Mr Apex, i have uf4007 and 1n5819 diode, it's necessary to use uf4004 and 1n4148?

Inviato dal mio Z00D utilizzando Tapatalk

 

[lycanlk]

D200 - Manoj MOD

Thanks Abetir for sharing the PCB!

Tested with +/-45 and works fine!

But when I increase the voltage up to +/-80 I couldn't stop the switching noise. It also crashes Radio signals.

Used IRF640. Also tested with IRF740
Changed gate resisters from 10/22/47 ohms
Inductor T106-2 54 turns (tried 44 to 60 turns)
for MUR120 I used UF4007 then replaced with BYV29-200

Nothing could stop the noise under high voltage
Also noticed +ve rail voltage goes up to 120v only when the amp is connected to speakers. Powered by SMPS switching at 53kHz

Any suggestions please??